## 2 événements

• Systèmes Dynamiques

### Vendredi 18 octobre 10:30-11:30 - Daniel Felipe Lopez Garcia - IMPA (Brésil)

Monodromy action and irreducible components of the space of foliations in $C^2$ with centers

Résumé : The set $\cal M(d)$ of foliations in $\mathbb{C}^2$ with at least one center and degree less than or equal to some d is an algebraic set, and the problem of classifying its components is very interesting and an open problem. The set of Hamiltonian foliations given by 1-forms dF (where $\mathbb{C}^2 \rightarrow \mathbb{C}$ is a polynomial of degree d + 1) give us an irreducible component H(d) of $\cal M(d)$ Using Picard-Lefchestz theory and the Monodromy action on vanishing cycles of fibers of F , we want to study the intersection of some components of $\cal M(d)$ with H(d).

Lieu : salle 207, bat 1R2

• Colloquium

### Vendredi 18 octobre 14:00-15:00 - Marc Arnaudon - Univ. de Bordeaux

Interpolation entropique pour des fluides visqueux incompressibles

Lieu : Amphi Schwartz, IMT, bat. 1R3 - Amphi Schwartz, IMT, bat. 1R3

Notes de dernières minutes : https://www.math.univ-toulouse.fr/spip.php?article502